Canadian Aviation Regulations

602.36 (1) When an aircraft is operated in the standard pressure region, each flight crew member who occupies a flight crew member position that is equipped with an altimeter shall

• (a) immediately before conducting a take-off from an aerodrome, set the altimeter to the altimeter setting of the aerodrome or, if that altimeter setting is not obtainable, to the elevation of the aerodrome;

• (b) before reaching the flight level at which the flight is to be conducted, set the altimeter to 29.92 inches of mercury or 1,013.2 millibars; and

• (c) immediately before commencing a descent for the purpose of landing at an aerodrome, set the altimeter to the altimeter setting of the aerodrome, if that altimeter setting is obtainable.

(2) Despite paragraph (1)(c), when a holding procedure is being conducted before landing at an aerodrome located in the standard pressure region, each flight crew member who occupies a flight crew member position that is equipped with an altimeter shall set the altimeter to the altimeter setting of the aerodrome immediately before descending below the lowest flight level at which the holding procedure is conducted.